How do I use Grout Brush?Updated 5 hours ago
TL;DR: Grout Brush cleans most grout types plus fridge seals, sliding door runners, and leather cushion seams. Pair with Universal Cleaner and use gentle pressure on silicone grout. Expect approximately 100 m of stone grout cleaning per brush.
Last reviewed: April 2026
How do I use Koh Grout Brush?
Spray Universal Cleaner onto the grout lines or target area, scrub along the line with Grout Brush, and wipe residue with Universal Cloth. Use firm pressure on cement and epoxy grout, and gentle pressure on silicone sealant. Stiff but flexible bristles get into grout channels without scratching the surrounding tile.
Three steps
Spray Universal Cleaner directly onto the grout lines or target area.
Scrub along the grout line with the bristles. Firm pressure on cement grout, gentle on silicone.
Wipe residue with a Universal Cloth or any damp cloth.
⚠ Silicone grout and sealant
Silicone-type grout and sealant can be soft and delicate, especially around shower edges and bathtub joins. Apply gentle pressure and short strokes to avoid damaging or dislodging the seal.
What else can Koh Grout Brush clean?
Grout Brush is a detailing brush for any tight, textured, or ridged surface. Works on fridge door seals, shower tracks, sliding door runners, leather cushion seams, keyboard gaps, window sills, tap bases, shoe soles, and rangehood filters. For door runners, wrap Universal Cloth around the bristles for a more detailed clean.
Around the home
Fridge door seals, sliding door runners, and leather cushion seams. For door runners, wrap Universal Cloth once around the bristles for a more detailed clean.
Beyond the obvious
Keyboard gaps, window sills, tap bases, shoe soles, rangehood filters, cheese graters, and blender blades. Anywhere a regular cloth can't reach into textured or ridged detail.
How long does Koh Grout Brush last?
Expect approximately 100 metres of stone-based grout cleaning per Grout Brush before the bristles wear down. Actual lifespan depends on pressure, surface coarseness, and how often you scrub. Rinse under warm water after each use, shake out water, and air-dry bristles-up to keep them straight and effective. Replace when bristles splay or flatten.
Lifespan
Around 100 metres of stone grout cleaning per brush. Lighter-duty surfaces like fridge seals and door runners barely register any wear, so one brush stretches a long way.
✓ Keep it lasting
Rinse under warm running water after every use, shake out the excess, and air-dry bristles-up. That keeps the bristles straight and stops any grime from setting into the base. Replace when bristles splay, flatten, or go permanently bent.
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Grout Brush pairs with Universal Cleaner for grout and detail work, and sits alongside Diamond Sponges for a complete deep-clean toolkit.
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